A complex story, part historical, part mystery, part romance. A young lieutenant in the British Army sets off across the Arabian desert in search of two comrades held captive by some Bedu tribesmen. It's 1883, slavery is still rife and he is accompanied by a young Abyssinian slave girl called Zena and they fall in love. The historical detail and colourful description - of the cruelties and hardships - make a marvellous background for romance.